Malicious PDF — malware analysis report

Static analysis result for SHA-256 407e51af77c76062…

MALICIOUS

PDF

34.5 KB Created: 2021-06-25 06:09:15 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: dd2bd23eef102e0034921068c2065a74 SHA-1: 0941b0f3a5c523f742db0f0720f40dbfa25ca8a7 SHA-256: 407e51af77c76062cb64a0558b3206d331f7a21b28656cab0194c1238be1afb9
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to a malicious redirector infrastructure, specifically http://netcdn.co/app/431946152/how-to-get-free-hacks-on-roblox-game-hack, which is designed to lure users with promises of game hacks. The document body and heuristics confirm this lure tactic, indicating a likely phishing or malware distribution attempt. No scripts were extracted, but the embedded URLs and the nature of the lure strongly suggest a malicious intent to redirect users to harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector critical PDF_GAME_HACK_REDIRECT_LURE
    PDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://netcdn.co/app/431946152/how-to-get-free-hacks-on-roblox-game-hack In PDF document text
    • https://planetzoe.hr/files/robux-gratis_GM431946152.pdfIn PDF document text
    • https://planetzoe.hr/files/difeml-roblox-free-robux_GM431946152.pdfIn PDF document text
    • https://www.planetzoe.hr/files/collect-free-spin-linms-coin-master_GM406889139.pdfIn PDF document text
    • https://www.planetzoe.hr/files/real-minecraft-for-free_GM479516143.pdfIn PDF document text
    • https://planetzoe.hr/files/hack-game-coin-master_GM406889139.pdfIn PDF document text
    • https://www.planetzoe.hr/files/free-games-like-roblox_GM431946152.pdfIn PDF document text
    • https://planetzoe.hr/files/minecraft-windows-10-free-trial_GM479516143.pdfIn PDF document text
    • https://planetzoe.hr/files/how-to-hack-robux_GM431946152.pdfIn PDF document text
    • https://planetzoe.hr/files/coin-master-free-spins-2021_GM406889139.pdfIn PDF document text
    • https://planetzoe.hr/files/coin-master-card-collection-hack_GM406889139.pdfIn PDF document text
    • https://www.planetzoe.hr/files/how-can-you-get-free-robux_GM431946152.pdfIn PDF document text
    • https://www.planetzoe.hr/files/free-minecraft-resource-packs_GM479516143.pdfIn PDF document text
    • https://www.planetzoe.hr/files/coin-master-free-gold-cards-link-2021_GM406889139.pdfIn PDF document text
    • https://www.planetzoe.hr/files/coin-master-free-spins-2021_GM406889139.pdfIn PDF document text
    • https://www.planetzoe.hr/files/coin-master-free-spins-link-no-verification-2021_GM406889139.pdfIn PDF document text
    • https://planetzoe.hr/files/free-spins-for-coin-master-app_GM406889139.pdfIn PDF document text
    • https://planetzoe.hr/files/how-to-get-free-robux-without-doing-anything-2021_GM431946152.pdfIn PDF document text
    • https://www.planetzoe.hr/files/free-roblox-shirt-templates_GM431946152.pdfIn PDF document text
    • https://planetzoe.hr/files/how-to-get-free-clothing-on-roblox_GM431946152.pdfIn PDF document text
    • https://planetzoe.hr/files/coin-master-free-mighty-lion-card_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 7

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000322e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x322E 21588 bytes
SHA-256: 79c4adcfcaa531de4d8921cdea384834d5f874dd6e8e2ab10cb819e3bdbf5a8d
font_01_sfnt_off00006174.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6174 19088 bytes
SHA-256: 5387f10b16a11d684a62ebe4fe29a996e2ad291fa4a79865840a245de73a996f

Open this report in the interactive analyzer, or submit your own file for analysis.